.main-container{
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  /* background-color: aqua */
  overflow:hidden;
}
.main-container .main-content{
  position: absolute;
  width: 100%;
  top: 0;
  bottom: 60px;
  /* background-color: bisque */
}
.main-container .main-menu{
  position: absolute;
  bottom: 0;
  height: 60px;
  width: 100%;
  /* background-color: blanchedalmond */
  text-align: center;
}
.menu{
  color: #bbb;
  text-align: center;
  height: 60px;
  line-height: 60px;
  width: 100%;
  z-index: 9999;
}
/* .main-container .main-menu .menu.active {
  color: orange;
} */
.menu i {
  display: block;
  height: 45px;
  /* padding-left: 31%; */
  width: 100%;
  font-size: 22px;
  line-height: 45px;
}
.menu div {
  height: 15px;
  line-height: 10px;
}
.menu.active {
  color: orange;
}